Est. 2023 · Hong Kong
Weiwen Network Technology Co., Limited
Pioneering the Future of Anonymous Social Networking
Who We Are
Weiwen Network Technology Co., Limited is a Hong Kong-based technology company founded in 2023, dedicated to building safe, innovative, and engaging platforms for anonymous social interaction. We believe that genuine human connections can flourish when people feel free to be themselves — without the pressure of social profiles or public identities.
In just two years, we have grown from a small startup to a recognized leader in the stranger chat industry, serving millions of users across 150+ countries. Our flagship products — PingZiShuo (瓶子说) in mainland China and Knotchat internationally — have set new standards for user experience, safety, and matching intelligence in anonymous social networking.
Our mission is simple: connect people worldwide through meaningful, spontaneous conversations — powered by cutting-edge AI moderation, real-time matching algorithms, and a relentless commitment to user privacy.
Our Products
PingZiShuo (瓶子说)
The leading anonymous social platform in China, PingZiShuo has redefined how millions of users discover and connect with strangers. Featuring AI-powered matching, voice rooms, interest-based communities, and real-time content moderation, it consistently ranks as the top app in its category across major Chinese app stores.
5M+
Monthly Active Users
4.8/5
App Store Rating
2M+
Daily Conversations
Knotchat
Our international anonymous chat platform connecting users across 150+ countries through text and video chat. Built with WebRTC for crystal-clear video, AI-driven safety features, and smart matching that considers language, interests, and region preferences. Knotchat is the modern, safe alternative to legacy platforms.
150+
Countries Served
4.8/5
User Satisfaction
<3s
Avg. Match Time
Our Team
A world-class team with deep expertise in real-time communication, AI safety, and social product design.
Engineering
Our engineering team brings together experts in distributed systems, WebRTC, real-time messaging, and mobile development. We maintain a 99.9% uptime SLA across all services and process over 10 million real-time events daily.
AI & Safety
Our AI team develops proprietary content moderation models that analyze text, image, and video in real time. With sub-second detection latency and multi-language support, we maintain a safe environment without compromising user experience.
Product & Design
Our product team combines data-driven iteration with human-centered design. Every feature goes through rigorous A/B testing and user research to ensure we build what truly matters for our community.
Trust & Operations
Our trust & safety operations team provides 24/7 human moderation support, handles escalations, and works closely with law enforcement when needed. We maintain strict compliance with global data protection regulations.
Our Values
Privacy First
We collect only what's necessary and never sell user data. Conversations are ephemeral by design — when you disconnect, your chat history disappears.
Safety Without Compromise
Our multi-layered safety system combines AI detection, human moderation, and community reporting to create a trusted environment for everyone.
Relentless Innovation
From smart matching algorithms to real-time translation, we constantly push the boundaries of what anonymous social experiences can be.
Global Inclusion
We serve users across 150+ countries in 8 languages, ensuring everyone can participate regardless of their background or location.
Our Office
Registered Office
Weiwen Network Technology Co., Limited
RM D07, 8/F, Kai Tak Factory Building, No. 99 King Fuk Street, San Po Kong, Kowloon, Hong Kong
Partner With Us
Whether you're interested in business partnerships, media inquiries, or investment opportunities — we'd love to hear from you.